Autonomous vehicle handling and performance adjustment

• US 9,666,069 B2
• Filed: 02/14/2014
• Issued: 05/30/2017
• Est. Priority Date: 02/14/2014
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Engelman, Gerald H., Stephenson, Richard Lee, Miller, Alex Maurice, Tellis, Levasseur, Zwicky, Timothy D.
• Primary Examiner(s): Beaulieu, Yonel
• Assistant Examiner(s): WEEKS, MARTIN A
• Application Number:
  US14/180,680
• Publication Number:
  US 20150235557A1
• Time in Patent Office: 1,201 Days
• CPC Class Codes: B60W 2050/0075 Automatic parameter input, automatic initialising or calibrating means
• CPC Class Codes: B60W 2556/45 External transmission of data to or from the vehicle
• CPC Class Codes: B60W 2556/55 using telemetry
• CPC Class Codes: G08G 1/091 Traffic information broadcasting broadcasting communication H04H
• CPC Class Codes: G08G 1/096708 where the received information might be used to generate an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096725 where the received information generates an automatic action on the vehicle control
• CPC Class Codes: G08G 1/096741 where the source of the transmitted information selects which information to transmit to each vehicle
• CPC Class Codes: G08G 1/096791 where the origin of the information is another vehicle

Abstract

A vehicle includes an autonomous driving sensor configured to detect a road condition and output at least one road condition signal representing the road condition, an autonomous mode controller configured to control the vehicle according to the at least one road condition signal, and a communication module configured to broadcast the road condition signal.

Claims

1. A vehicle comprising:

an autonomous driving sensor configured to detect a road condition and output at least one road condition signal representing the road condition;

an autonomous mode controller configured to control the vehicle according to the at least one road condition signal; and

a communication module configured to broadcast the road condition signal directly to nearby vehicles within a communication range of the communication module,

wherein the communication module is programmed to apply, to the road condition signal, a decay factor that defines a time at which the detected road condition expires and cease broadcasting the road condition signal in accordance with the decay factor.

2. The vehicle of claim 1, further comprising a navigation system configured to determine a location of the road condition.

3. The vehicle of claim 2, wherein the communication module is configured to transmit the location of the road condition.

4. The vehicle of claim 1, wherein the communication module is configured to receive at least one road condition signal transmitted by at least one other vehicle.

5. The vehicle of claim 4, wherein the road condition signal transmitted by the at least one other vehicle identifies a location of the road condition.

6. The vehicle of claim 4, wherein the autonomous mode controller is configured to control the vehicle according to the road condition signal transmitted by the at least one other vehicle.

7. The vehicle of claim 6, wherein the autonomous mode controller is configured to adjust at least one vehicle setting in accordance with the road condition represented by the road condition signal transmitted by the at least one other vehicle.

8. The vehicle of claim 1, wherein the communication module is configured to receive at least one road condition signal transmitted by an infrastructure device, and wherein the autonomous mode controller is configured to adjust at least one vehicle setting in accordance with the road condition represented by the road condition signal transmitted by the infrastructure device.

9. The vehicle of claim 1, wherein the road condition signal indicates a time at which the road condition was detected.

10. A vehicle system comprising:

an autonomous mode controller configured to control a host vehicle according to at least one road condition signal generated by an autonomous driving sensor, the road condition signal representing a detected road condition; and

a communication module configured to broadcast the road condition signal directly to nearby vehicles within a communication range of the communication module,

wherein the communication module is programmed to apply, to the road condition signal, a decay factor that defines a time at which the detected road condition expires and cease broadcasting the road condition signal in accordance with the decay factor.

11. The vehicle system of claim 10, wherein the communication module is configured to transmit a location of the road condition.

12. The vehicle system of claim 10, wherein the communication module is configured to transmit a time at which the road condition was detected.

13. The vehicle system of claim 10, wherein the communication module is configured to receive at least one road condition signal transmitted by a front vehicle.

14. The vehicle system of claim 13, wherein the road condition signal transmitted by the front vehicle identifies a location of the road condition and a time at which the road condition was detected.

15. The vehicle system of claim 13, wherein the autonomous mode controller is configured to control the host vehicle according to the road condition signal transmitted by the front vehicle.

16. The vehicle system of claim 15, wherein the autonomous mode controller is configured to adjust at least one setting of the host vehicle in accordance with the road condition represented by the road condition signal transmitted by the front vehicle.

17. The vehicle system of claim 14, wherein the road condition signal transmitted by the front vehicle represents a road condition that was not detected by the front vehicle.

18. The vehicle system of claim 10, wherein the communication module is configured to receive at least one road condition signal transmitted by an infrastructure device, and wherein the autonomous mode controller is configured to adjust at least one setting of the host vehicle in accordance with the road condition represented by the road condition signal transmitted by the infrastructure device.

19. A vehicle system comprising:

an autonomous mode controller configured to control a host vehicle when the host vehicle is operating in an autonomous mode; and

a communication module configured to receive at least one road condition signal transmitted by a front vehicle, wherein the road condition signal identifies a location of a road condition and a time at which the road condition was detected,

wherein the autonomous mode controller is configured to adjust at least one setting of the host vehicle in accordance with the road condition represented by the road condition signal transmitted by the front vehicle, and

wherein the communication module is configured to broadcast the at least one road condition signal directly to nearby vehicles within a communication range of the communication module, and wherein the communication module is programmed to apply, to the road condition signal, a decay factor that defines a time at which the detected road condition expires and cease broadcasting the road condition signal in accordance with the decay factor.

20. The vehicle system of claim 19, wherein the communication module is configured to receive at least one road condition signal transmitted by an infrastructure device, and wherein the autonomous mode controller is configure to adjust at least one setting of the host vehicle in accordance with the road condition represented by the road condition signal transmitted by the infrastructure device.